Photo of the Day

Boulder amid grassland
April 17, 2011

Cheyenne River Sioux Tribal Park, South Dakota

This Month in Photo of the Day: Nature and Weather Photos A glacial remnant boulder is surrounded by grassland in Cheyenne River Sioux Tribal Park in South Dakota. A growing number of tribes across the United States are making moves to bring back land crushed over generations of human use. See more pictures from the August 2010 feature story "Native Lands". See more U.S. National Parks pictures, get guides, and more »
Photograph by Jack Dykinga, National Geographic

Go Further

Subscriber Exclusive Content

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history